Malicious PDF — malware analysis report

Static analysis result for SHA-256 c070c136506e20b9…

MALICIOUS

PDF

49.7 KB Authoring application: SWFTools First seen: 2020-05-14
MD5: 605c7f677d8aaad1e1befa761a2524e9 SHA-1: 819db8533fd9780434166322569571702dbd814b SHA-256: c070c136506e20b9750bd1fb64ccf0ef22253a412c421c4d89bd029015cecf7b
152 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF file was flagged by ClamAV as 'Pdf.Phishing.TtraffRobotInstall-7605656-0'. Static analysis revealed a large number of embedded external links, indicating a link farm likely used for phishing or distributing further malware. The document body contains text related to 'Dreambox web control stream' and SWFTools, but this appears to be obfuscation or unrelated content, as the primary malicious activity is the link farm.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9999

Heuristics 3

  • ClamAV: Pdf.Phishing.TtraffRobotInstall-7605656-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.TtraffRobotInstall-7605656-0
  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
    URL http://almostasecondgrader.com/uploads/1/3/0/2/130289587/newovanosi.pdf In PDF document text
    • http://eccochambermusic.org/uploads/1/3/0/5/130588509/remosenigale_ronozazudoguf_rusop.pdfIn PDF document text
    • http://gilbertjacksongroup.com/uploads/1/3/0/3/130323581/6760645.pdfIn PDF document text
    • http://wwwgippslandfibreglass.com/uploads/1/3/0/3/130323478/edf001.pdfIn PDF document text
    • http://shellygiggey.com/uploads/1/3/0/5/130588288/1431457.pdfIn PDF document text
    • http://mrblacksmusic.com/uploads/1/3/0/4/130483909/faditaf.pdfIn PDF document text
    • http://mole-man.co.uk/uploads/1/3/0/4/130483852/povuzek_dusokigedefiz.pdfIn PDF document text
    • http://smiledefenders.net/uploads/1/3/0/5/130588740/5743291.pdfIn PDF document text
    • http://sciencesmartssociety.org/uploads/1/3/0/3/130379333/jilevol.pdfIn PDF document text
    • http://50klawn.net/uploads/1/3/0/4/130483142/130483142.html#dreambox+web+control+streamIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://fedoraproject.org/wiki/Licensing/LiberationFontLicenseIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00001281.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1281 10112 bytes
SHA-256: 7a0652adcf53a44527e6c6ad4d51481bc8eb8a84fc08d04cb7cf9f6ff274e63b
font_01_sfnt_off00008804.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8804 2652 bytes
SHA-256: e2f1373bf3d70a40ff4276a486f0a1d2d32154e4f45ad1243a44c3d3b7d91cea